450 BM; 16in Dimpled Fluting Barrel; 4150; 1:24 Twist;Mid-Length Gas; 11/16×24 TM; Nitride

Description

The Tier 1 Tactical 450 BM AR Barrel – 16″ is precision engineered from 4150 CMV steel and cold hammer forged (CHF) for rugged durability, consistent performance, and long service life. Designed for AR-15 platforms, this 450 BM AR barrel delivers smooth cycling, dependable accuracy, and exceptional stopping power in a straight-wall cartridge configuration.

Featuring dimpled fluting for weight reduction and enhanced rigidity, built for shooters who demand strength, consistency, and reliable performance in tactical, hunting, or duty builds.

450 BM AR Barrel – Cold Hammer Forged Performance

• Caliber: .450 Bushmaster (450 BM)
• Barrel Length: 16″
• Steel: 4150 CMV
• Manufacturing: Cold Hammer Forged (CHF)
• Twist Rate: 1:24
• Thread Pitch: 11/16×24
• Nitride finish for corrosion resistance

The 1:24 twist rate stabilizes a wide range of .450 Bushmaster projectiles, making this 450 BM AR barrel ideal for hunting, brush gun builds, and straight-wall cartridge applications.

Dimpled Fluting for Weight Reduction & Rigidity

Precision dimpled fluting reduces overall weight while maintaining structural integrity. This design enhances heat dissipation and supports consistent accuracy during extended shooting sessions.

Nitride Finished for Corrosion Resistance

The nitride finish increases surface hardness, wear resistance, and corrosion protection—extending the lifespan of this 450 BM AR barrel even in demanding environments.

Optimized for 450 BM AR-15 Builds

This barrel is ideal for 16″ AR-15 rifle builds designed for hunting, defense, or straight-wall compliance. The 11/16×24 thread pitch ensures compatibility with standard .450 Bushmaster muzzle devices, flash hiders, and suppressor mounts.

450 BM AR Barrel Specifications

• Caliber: .450 Bushmaster (450 BM)
• Length: 16″
• Material: 4150 CMV Steel
• Twist Rate: 1:24
• Manufacturing: Cold Hammer Forged
• Finish: Nitride
• Thread Pitch: 11/16×24

Built for Power. Engineered for Reliability.

The Tier 1 Tactical 450 BM AR barrel combines cold hammer forged strength, precision fluting, and a corrosion-resistant nitride finish in a 16″ configuration built for dependable AR-15 performance.